The paper presents an approach, preparation, testing, implementation and evaluation of the outcomes of ongoing EU project UNITE (FP6 IST-26964, 2006-2008). An objective of the project is investigation and validation of the UNITE framework, i.e., technological platform, the pedagogical models, methodology guidelines and the eLearning scenarios (all together - the UNITE framework). The UNITE technological platform is an e-learning environment based on three technologies, which – at the beginning of the project - were already available ‘standalone’: Microcosmos, MTS-Infopool and m-Learning. As such, the UNITE platform provides a seamless integration of those technologies in a user friendly environment in order to offer the following functionality to the end user: eLearning management, content management, communication/collaboration, mobile learning. To carry out the implementation and validation of the UNITE framework each partner of the project involves in the project one or two schools, thus creating a network of schools (NoS). Physically, the NoS consists of 14 different schools from 10 European countries. The UNITE NoS provides feedback regarding usability of the platform (scenario- or task-based usability testing followed by SUS - System Usability Survey) and final socio-economic evaluation. The paper presents results in the respect to one of involved to the project secondary school.